Dnia 2009-11-24, Wt o godzinie 11:18 +0100, Christian Démolis pisze:
> Is it possible to put a filter on a relation in the declaration?
>
> Example :
> LeNomDuUtilisateur = relation(Utilisateur,
> filter_by=Utilisateur.Login, backref=backref('verrouillage'))
I'm not sure what exactly your example means.. but if you want extra
filters on relation, you can change primaryjoin
http://www.sqlalchemy.org/docs/05/mappers.html#specifying-alternate-join-conditions-to-relation
something like:
LeNomDuUtilisateur = relation(Utilisateur,
primaryjoin=sqlalchemy.and_(defaultjoincondition,
yourextrafiltercondition), backref='verrouillage')
Tomasz Jezierski
Tefnet
www.tefnet.pl
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